Move the `rescue_from` API docs link to the first mention of it
Move the `rescue_from` API docs link to the first mention of it

in the Action Cable Overview guide

If we want to link to the `rescue_from` API docs, it makes more sense to
do it the first time we mention `rescue_from` rather than the second
time.

[ci skip]

palkan/rails,yalab/rails,Vasfed/rails,eileencodes/rails,MSP-Greg/rails,iainbeeston/rails,mechanicles/rails,tjschuck/rails,repinel/rails,yhirano55/rails,schuetzm/rails,Erol/rails,gauravtiwari/rails,yawboakye/rails,joonyou/rails,Stellenticket/rails,vipulnsward/rails,repinel/rails,yahonda/rails,rafaelfranca/omg-rails,Envek/rails,EmmaB/rails-1,georgeclaghorn/rails,kddeisz/rails,gauravtiwari/rails,MSP-Greg/rails,BlakeWilliams/rails,palkan/rails,bogdanvlviv/rails,MSP-Greg/rails,tgxworld/rails,kddeisz/rails,betesh/rails,rails/rails,tgxworld/rails,bogdanvlviv/rails,Vasfed/rails,esparta/rails,rafaelfranca/omg-rails,rails/rails,BlakeWilliams/rails,joonyou/rails,Vasfed/rails,tjschuck/rails,yalab/rails,mechanicles/rails,iainbeeston/rails,kddeisz/rails,yalab/rails,yahonda/rails,iainbeeston/rails,eileencodes/rails,lcreid/rails,Vasfed/rails,schuetzm/rails,tgxworld/rails,BlakeWilliams/rails,yawboakye/rails,georgeclaghorn/rails,Erol/rails,schuetzm/rails,Stellenticket/rails,iainbeeston/rails,starknx/rails,rafaelfranca/omg-rails,lcreid/rails,Erol/rails,yahonda/rails,tjschuck/rails,starknx/rails,lcreid/rails,Edouard-chin/rails,kmcphillips/rails,georgeclaghorn/rails,starknx/rails,Erol/rails,yhirano55/rails,georgeclaghorn/rails,Envek/rails,repinel/rails,MSP-Greg/rails,kmcphillips/rails,Envek/rails,yawboakye/rails,mechanicles/rails,gauravtiwari/rails,yhirano55/rails,schuetzm/rails,palkan/rails,Stellenticket/rails,yhirano55/rails,betesh/rails,esparta/rails,joonyou/rails,Edouard-chin/rails,EmmaB/rails-1,Stellenticket/rails,betesh/rails,joonyou/rails,esparta/rails,rails/rails,eileencodes/rails,EmmaB/rails-1,BlakeWilliams/rails,vipulnsward/rails,yahonda/rails,kmcphillips/rails,tjschuck/rails,palkan/rails,repinel/rails,eileencodes/rails,vipulnsward/rails,mechanicles/rails,rails/rails,Envek/rails,esparta/rails,Edouard-chin/rails,yawboakye/rails,tgxworld/rails,lcreid/rails,betesh/rails,vipulnsward/rails,kmcphillips/rails,bogdanvlviv/rails,yalab/rails,Edouard-chin/rails,bogdanvlviv/rails,kddeisz/rails